20112001124 has 12 divisors (see below), whose sum is σ = 35544477948. Its totient is φ = 9956436000.

The previous prime is 20112001121. The next prime is 20112001171. The reversal of 20112001124 is 42110021102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19198873600 + 913127524 = 138560^2 + 30218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20112001099 and 20112001108.

It is not an unprimeable number, because it can be changed into a prime (20112001121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24890687 + ... + 24891494.

It is an arithmetic number, because the mean of its divisors is an integer number (2962039829).

Almost surely, 2^20112001124 is an apocalyptic number.

It is an amenable number.

20112001124 is a deficient number, since it is larger than the sum of its proper divisors (15432476824).

20112001124 is a wasteful number, since it uses less digits than its factorization.

20112001124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49782286 (or 49782284 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112001124 its reverse (42110021102), we get a palindrome (62222022226).

The spelling of 20112001124 in words is "twenty billion, one hundred twelve million, one thousand, one hundred twenty-four".